Thermoelastic properties of ScB2, TiB2, YB4 and HoB4: Experimental and theoretical studies

Autor: Axel Svane, Georgiy Levchenko, A. Lyaschenko, V.B. Filipov, V. Kanchana, L. Gerward, Alicja Waśkowska, K. Ramesh Babu, G. Vaitheeswaran, J. Staun Olsen

Publikováno v: Waśkowska, A, Gerward, L, Staun Olsen, J, Ramesh Babu, K, Vaitheeswaran, G, Kanchana, V, Svane, A, Filipov, V B, Levchenko, G & Lyaschenko, A 2011, ' Thermoelastic properties of ScB 2, TiB 2, YB 4 and HoB 4 : Experimental and theoretical studies ', Acta Materialia, vol. 59, no. 12, pp. 4886–4894 . https://doi.org/10.1016/j.actamat.2011.04.030

High-pressure X-ray diffraction in ScB2, TiB2, YB4 and HoB4 powders and single crystals has been studied using synchrotron radiation as well as conventional X-rays. The experimental results are supported by calculations using density functional theor

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ce588842b219678872e1ae8b451d2e19
https://doi.org/10.1016/j.actamat.2011.04.030

Pressure-induced phase transformations in l-alanine crystals

Autor: F. E. A. Melo, Paulo Freire, L. Gerward, J. Staun Olsen, J. Mendes Filho, A. G. Souza Filho

Publikováno v: Journal of Physics and Chemistry of Solids
Journal of Physics and Chemistry of Solids, Elsevier, 2009, 69 (7), pp.1641. ⟨10.1016/j.jpcs.2007.12.005⟩

Raman scattering and synchrotron X-ray diffraction have been used to investigate the high-pressure behavior of l -alanine. This study has confirmed a structural phase transition observed by Raman scattering at 2.3 GPa and identified it as a change fr

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7ec55c31eb46081086a638473fcf3933
https://doi.org/10.1016/j.jpcs.2007.12.005

High-pressure X-ray diffraction ofL-ALANINE crystal

Autor: L. Gerward, J. Mendes Filho, Paulo Freire, J. Staun Olsen, F. E. A. Melo, A. G. Souza Filho

Publikováno v: High Pressure Research. 26:433-437

L-ALANINE has been studied by X-ray diffraction at ambient temperature and pressure up to 10.3 GPa. The material is found to transform to a tetragonal structure between 2 and 3 GPa and to a monoclinic structure between 8 and 10 GPa. The experimental

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::178d7c54fe532d99a5896d283f60449f
https://doi.org/10.1080/08957950601101837

X-ray diffraction at high pressure and high or low temperature using synchrotron radiation

Autor: J. M. Recio, J. Staun Olsen, L. Gerward, J.Z. Jiang, Alicja Waśkowska

Publikováno v: Journal of Alloys and Compounds. 401:11-17

A short review is given on X-ray diffraction at high pressure and high or low temperature using synchrotron radiation. Some selected applications are given for oxide, selenium and nitride spinels. Finally, a few remarks are presented on the bright pr

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e2083715cb3a5b10958f06547699290e
https://doi.org/10.1016/j.jallcom.2005.01.107

High-pressure neutron powder diffraction study of theIm\bar{3} phase of ReO3

Autor: William G. Marshall, L. Gerward, J. Staun Olsen, Ronald I. Smith, J.-E. Jørgensen

Publikováno v: Journal of Applied Crystallography. 37:857-861

The structure of ReO3has been studied over the pressure range from 1.27 to 8.01 GPa by neutron powder time-of-flight diffraction as well as by X-ray diffraction up to 41 GPa using Fluorinert as the pressure-transmitting medium. The cubic Im\bar{3} ph

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8fa84a82583af4c45542dec2d7fa753c
https://doi.org/10.1107/s0021889804018758